Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 33f9d8c0 authored by Andrew F. Davis's avatar Andrew F. Davis Committed by Lee Jones
Browse files

regulator: tps65912: Add regulator driver for the TPS65912 PMIC 



This patch adds support for TPS65912 PMIC regulators.

The regulators set consists of 4 DCDCs and 10 LDOs. The output
voltages are configurable and are meant to supply power to the
main processor and other components.

Signed-off-by: default avatarAndrew F. Davis <afd@ti.com>
Acked-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 796f5692

drivers/regulator/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -760,6 +760,12 @@ config REGULATOR_TPS65910 
	help

	  This driver supports TPS65910/TPS65911 voltage regulator chips.



config REGULATOR_TPS65912

	tristate "TI TPS65912 Power regulator"

	depends on MFD_TPS65912

	help

	    This driver supports TPS65912 voltage regulator chip.



config REGULATOR_TPS80031

	tristate "TI TPS80031/TPS80032 power regualtor driver"

	depends on MFD_TPS80031

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -95,6 +95,7 @@ obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o 
obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o

obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o

obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o

obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o

obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o

obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o

obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o

drivers/regulator/tps65912-regulator.c

0 → 100644
+168 −0
Original line number Diff line number Diff line 
/*

 * Regulator driver for TI TPS65912x PMICs

 *

 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/

 *	Andrew F. Davis <afd@ti.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any

 * kind, whether expressed or implied; without even the implied warranty

 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License version 2 for more details.

 *

 * Based on the TPS65218 driver and the previous TPS65912 driver by

 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>

 */



#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/regulator/driver.h>



#include <linux/mfd/tps65912.h>



enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,

	LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };



#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr)	\

	[_id] = {							\

		.name			= _name,			\

		.of_match		= _of_match,			\

		.regulators_node	= "regulators",			\

		.id			= _id,				\

		.ops			= &_ops,			\

		.n_voltages		= 64,				\

		.type			= REGULATOR_VOLTAGE,		\

		.owner			= THIS_MODULE,			\

		.vsel_reg		= _vr,				\

		.vsel_mask		= 0x3f,				\

		.enable_reg		= _er,				\

		.enable_mask		= BIT(7),			\

		.volt_table		= NULL,				\

		.linear_ranges		= _lr,				\

		.n_linear_ranges	= ARRAY_SIZE(_lr),		\

	}



static const struct regulator_linear_range tps65912_dcdc_ranges[] = {

	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),

};



static const struct regulator_linear_range tps65912_ldo_ranges[] = {

	REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),

	REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),

	REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),

};



/* Operations permitted on DCDCx */

static struct regulator_ops tps65912_ops_dcdc = {

	.is_enabled		= regulator_is_enabled_regmap,

	.enable			= regulator_enable_regmap,

	.disable		= regulator_disable_regmap,

	.get_voltage_sel	= regulator_get_voltage_sel_regmap,

	.set_voltage_sel	= regulator_set_voltage_sel_regmap,

	.list_voltage		= regulator_list_voltage_linear_range,

};



/* Operations permitted on LDOx */

static struct regulator_ops tps65912_ops_ldo = {

	.is_enabled		= regulator_is_enabled_regmap,

	.enable			= regulator_enable_regmap,

	.disable		= regulator_disable_regmap,

	.get_voltage_sel	= regulator_get_voltage_sel_regmap,

	.set_voltage_sel	= regulator_set_voltage_sel_regmap,

	.list_voltage		= regulator_list_voltage_linear_range,

	.map_voltage		= regulator_map_voltage_linear_range,

};



static const struct regulator_desc regulators[] = {

	TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,

			   TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,

			   tps65912_dcdc_ranges),

	TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,

			   TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,

			   tps65912_dcdc_ranges),

	TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,

			   TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,

			   tps65912_dcdc_ranges),

	TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,

			   TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,

			   tps65912_dcdc_ranges),

	TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,

			   TPS65912_LDO1_OP, TPS65912_LDO1_AVS,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,

			   TPS65912_LDO2_OP, TPS65912_LDO2_AVS,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,

			   TPS65912_LDO3_OP, TPS65912_LDO3_AVS,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,

			   TPS65912_LDO4_OP, TPS65912_LDO4_AVS,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,

			   TPS65912_LDO5, TPS65912_LDO5,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,

			   TPS65912_LDO6, TPS65912_LDO6,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,

			   TPS65912_LDO7, TPS65912_LDO7,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,

			   TPS65912_LDO8, TPS65912_LDO8,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,

			   TPS65912_LDO9, TPS65912_LDO9,

			   tps65912_ldo_ranges),

	TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,

			   TPS65912_LDO10, TPS65912_LDO10,

			   tps65912_ldo_ranges),

};



static int tps65912_regulator_probe(struct platform_device *pdev)

{

	struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);

	struct regulator_config config = { };

	struct regulator_dev *rdev;

	int i;



	platform_set_drvdata(pdev, tps);



	config.dev = &pdev->dev;

	config.driver_data = tps;

	config.dev->of_node = tps->dev->of_node;

	config.regmap = tps->regmap;



	for (i = 0; i < ARRAY_SIZE(regulators); i++) {

		rdev = devm_regulator_register(&pdev->dev, &regulators[i],

					       &config);

		if (IS_ERR(rdev)) {

			dev_err(tps->dev, "failed to register %s regulator\n",

				pdev->name);

			return PTR_ERR(rdev);

		}

	}



	return 0;

}



static const struct platform_device_id tps65912_regulator_id_table[] = {

	{ "tps65912-regulator", },

	{ /* sentinel */ }

};

MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);



static struct platform_driver tps65912_regulator_driver = {

	.driver = {

		.name = "tps65912-regulator",

	},

	.probe = tps65912_regulator_probe,

	.id_table = tps65912_regulator_id_table,

};

module_platform_driver(tps65912_regulator_driver);



MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("TPS65912 voltage regulator driver");

MODULE_LICENSE("GPL v2");